单击左窗格里的Simple以及右窗格里的File。
本文主要研究了左正则半群，正则子集以及GV -半群。
Left regular semigroups, regular subsets and GV-semigroups are studied in this paper.
您还需要平衡测试，以确定如何以及你能保持你的左，右的平衡。
You'll also take a balance test to determine how well you can maintain your left and right balance.
您还需要平衡测试，以确定如何以及你能保持你的左，右的平衡。
You'll also take a balance test to determine how well you can maintain your left and right balance.
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